<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<h1>第三个页面</h1>
		<div id="data"></div>
	</body>
	<script type="text/javascript">
		window.addEventListener('message',function(evt){
			console.log(evt)
			data.innerHTML += "<h3>"+evt.data+"</h3>"
		})
	</script>
</html>
